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Loans and Allowance for Credit Losses on Loans HFI - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Financing Receivable, Past Due [Line Items]
Collateral securing line of credit	$ 3,896,210		$ 3,896,210		$ 3,817,876
Accrued interest receivable on loans	50,887		50,887		50,140
Accrued interest receivable written off as an adjustment to interest income on non-accrual loans	1,124	$ 549	1,767	$ 1,890
Commitments to lend additional funds	100	$ 0	100	$ 0
Commercial and Industrial Loan \| Federal Reserve Bank
Financing Receivable, Past Due [Line Items]
Deposit liabilities, collateral issued, financial instruments	2,695,429		2,695,429		2,879,586
FHLB Cincinnati \| Residential Mortgage Loans
Financing Receivable, Past Due [Line Items]
Collateral securing line of credit	1,041,198		1,041,198		988,111
FHLB Cincinnati \| Commercial Loan
Financing Receivable, Past Due [Line Items]
Collateral securing line of credit	$ 2,855,012		$ 2,855,012		$ 2,829,765